package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.exception.SetmealEnableFailedException;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetMealService;

import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service
public class SetMealServiceImpl implements SetMealService {
    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;
    @Autowired
    private DishMapper dishMapper;
    @Override
    public void saveWithDish(SetmealDTO setmealDTO) {
        Setmeal setmeal=new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);
        setmealMapper.insert(setmeal);

    }

    @Override
    public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
        int pageNum = setmealPageQueryDTO.getPage();
        int pageSize = setmealPageQueryDTO.getPageSize();

        PageHelper.startPage(pageNum, pageSize);
      Page<SetmealVO> page=setmealMapper.pageQuery(setmealPageQueryDTO);

        return new PageResult(page.getTotal(),page.getResult());
    }
@Transactional
    @Override
    public void deleteBatch(List<Long> ids) {
ids.forEach(id->{
  Setmeal setmeal=setmealMapper.getById(id);
  if(setmeal.getStatus()== StatusConstant.ENABLE)
  {
      throw new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);
  }
});
ids.forEach(setmealId->{
    setmealMapper.deleteById(setmealId);
    setmealDishMapper.deleteBySetmealId(setmealId);
});
    }

    @Override
    public SetmealVO getByIdWithDish(Long id) {
        Setmeal setmeal = setmealMapper.getById(id);
       List<SetmealDish> setmealDishes= setmealDishMapper.getBySetmealId(id);
        SetmealVO setmealVO = new SetmealVO();

        BeanUtils.copyProperties(setmeal,setmealVO);
        setmealVO.setSetmealDishes(setmealDishes);
        return setmealVO;
    }

    @Override
    @Transactional
    public void update(SetmealDTO setmealDTO) {
        Setmeal setmeal=new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);

        setmealMapper.update(setmeal);
        Long setmealId = setmealDTO.getId();
setmealDishMapper.deleteBySetmealId(setmealId);
List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
setmealDishes.forEach(setmealDish->{
    setmealDish.setSetmealId(setmealId);
});
        setmealDishMapper.insertBatch(setmealDishes);
    }

    @Override
    public void startOrStop(Integer status, Long id) {

        if(status==StatusConstant.ENABLE)
        {
      List<Dish> dishlist= dishMapper.getBysetmealId(id);
      if(dishlist.size()>0&&dishlist!=null)
      {
          dishlist.forEach(dish -> {
              if(dish.getStatus()==StatusConstant.DISABLE)
              {
                  throw new SetmealEnableFailedException(MessageConstant.SETMEAL_ENABLE_FAILED);
              }
          });
      }
        }
        Setmeal setmeal=Setmeal.builder()
                .id(id)
                .status(status)

                .build();
        setmealMapper.update(setmeal);
    }
    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }
}
